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CVE-2020-35931

HIGHCVSS 7.8/10EPSS 2.29%

Last modified

CVE-2020-35931 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. An issue was discovered in Foxit Reader before 10.1.1 (and before 4.1.1 on macOS) and PhantomPDF before 9.7.5 and 10.x before 10.1.1 (and before 4.1.1 on macOS). An attacker can spoof a certified PDF document via an Evil Annotation Attack because the products fail to consider a null value for a Subtype entry of the Annotation dictionary, in an incremental update.. EPSS estimates a 2.29% chance of exploitation in the next 30 days.

Description

An issue was discovered in Foxit Reader before 10.1.1 (and before 4.1.1 on macOS) and PhantomPDF before 9.7.5 and 10.x before 10.1.1 (and before 4.1.1 on macOS). An attacker can spoof a certified PDF document via an Evil Annotation Attack because the products fail to consider a null value for a Subtype entry of the Annotation dictionary, in an incremental update.

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability
2.29%

81.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
FoxitsoftwareFoxit Reader< 10.1.1
FoxitsoftwarePhantompdf< 9.7.5
FoxitsoftwarePhantompdf>= 10.0.0, < 10.1.1
FoxitsoftwareFoxit Reader< 4.1.1
FoxitsoftwarePhantompdf< 4.1.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-35931?
An issue was discovered in Foxit Reader before 10.1.1 (and before 4.1.1 on macOS) and PhantomPDF before 9.7.5 and 10.x before 10.1.1 (and before 4.1.1 on macOS). An attacker can spoof a certified PDF document via an Evil Annotation Attack because the products fail to consider a null value for a Subtype entry of the Annotation dictionary, in an incremental update.
How severe is CVE-2020-35931?
CVE-2020-35931 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 2.29% probability of exploitation in the next 30 days.
How do I fix CVE-2020-35931?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-35931?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST